Cough, Decreased appetite, Drooping of one side of face, Hearing loss. Drooping of one side of face, Joint pain (Wrist), Joint pain (Fingers), Pain or discomfort. Drooping of one side of face, Muscle cramps or spasms (painful), Numbness or tingling (Face), Numbness or tingling (Jaw).
Still, I can explain in English that the meaning of phrase receipt and sufficiency of which is hereby acknowledged is that: by writing this (hereby) the signatory is formally agreeing (acknowledging) that whatever has been paid or given (the consideration) has been received and is sufficient.
Thus, service by notice and acknowledgement is an effective way to shift the burden of costs for service to the other party. Please note that the execution and return of an acknowledgment of receipt simply acknowledges receipt of the documents.